Seedless Red Grapevine Cultivar With Late Ripening and High Fruitfulness

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Solution Overview

Problem

There is a need for a new cultivar of grapevine that produces large, red, seedless berries with neutral flavor, ripens late, and has high vigor and fruitfulness, differing from existing cultivars in berry color, flavor, and ripening time.

Innovation Solution

The development of a new grapevine cultivar named 'SV36-21-170', resulting from a cross between 'SV13-2-138' and 'SV32-49-285', which exhibits large, red, seedless berries with neutral flavor, late ripening, and high vigor, and is propagated by cuttings and bench grafted to 'Freedom' rootstock.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If a new grapevine cultivar is developed to produce large, red, seedless berries with neutral flavor, then berry size, color, and flavor quality are improved, but breeding complexity and time required are increased

Engineering Contradiction:

Improveberry size and colorVSAvoidbreeding complexity

Core Design Contradiction:

ShapeVSDevice complexity

Solution Approach 1:

The patent uses tissue culture as an intermediary technique to facilitate the breeding process. By culturing ovules and embryos in controlled laboratory conditions, the breeding program can efficiently select and propagate desired traits (large, red, seedless berries with neutral flavor) without the complexity of traditional field breeding methods.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent applies parameter changes by controlling environmental conditions (temperature, light, media composition) during tissue culture to optimize berry development. This allows precise control over berry size, color, and other characteristics while maintaining the desired neutral flavor profile.

Inventive Principle:

Principle #35Parameter changes

2Stress or pressure

If the grapevine is selected to ripen late in the season, then fruit quality and sugar content are improved, but the growing season duration is extended

Engineering Contradiction:

Improvefruit quality and sugar contentVSAvoidgrowing season duration

Core Design Contradiction:

Stress or pressureVSDuration of action of moving object

Solution Approach 1:

The patent employs preliminary selection of parent plants with specific ripening characteristics before crossing. By choosing parents that contribute to late ripening and high sugar content, the desired traits are established early in the breeding program, allowing the new cultivar to achieve superior fruit quality without requiring an excessively extended growing season.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If the grapevine exhibits high vigor and fruitfulness, then productivity is improved, but plant size and management requirements are increased

Engineering Contradiction:

ImprovefruitfulnessVSAvoidmanagement requirements

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies local quality by selecting for high fruitfulness in specific zones of the vine while maintaining overall plant health. The tissue culture method allows selective propagation of vines with optimized vigor levels, ensuring high productivity without excessive plant size that would complicate management.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUSPP37225P2Grapevine named ‘SV36-21-170’

Publication Date: 2026.01.27 SUNVIEW VINEYARDS OF CALIFORNIA INC

AI summary

A new and distinct variety of grapevine plant named ‘SV36-21-170’ particularly characterized by its very sweet, crisp, red berries with neutral Vitis vinifera flavor. Natural cluster size is medium with well-filled, loose clusters. Fruitfulness is high with shoots on spur pruned vines usually producing two flower cluster per shoot.